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anonymous
 5 years ago
Could anyone give me a refresher? How do you find the line of intersection in a 3x3 system of equations?
anonymous
 5 years ago
Could anyone give me a refresher? How do you find the line of intersection in a 3x3 system of equations?

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amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0same as a ...what a miute, thats a matrix aint it

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0elimination is still the same process....

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0if you know 3 points, you can solve for a 3x3

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0No, because it's a LINE of intersection, not a point.

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0right, the three planes interesect at a line instead of a point.

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0if you look at it head on its 3 lines at a single point if I recall correctly. kinda like a churro :)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Lol... or an asterisk? But, I still need the line itself, not just a point.

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0we got any examples to muddle thru?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0if you have a system of three equations (in three variables i'm guessing), they can intersect at a point or a line.

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0solving quadratics by just the points is finding a solution to 3 planes that come to a point... :)

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0if they intersect in a line, you get infinite solutions, so you should be able to just parameterize the solution from rref your matrix.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Isn't there a way to do it without reduced row echelon form?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0rref is the most simple way that i know.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0you may not have to reduce it all the way.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0if you can notice by inspection that one eq. is a linear combo. of the other.
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